05000315/LER-1978-065-03, /03L-0 on 781229:indication for Pressurizer Level Channel 2 Deviated Approx 5% from Other 2 Channels.Caused by Gas Pocket in Sensing Line

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/03L-0 on 781229:indication for Pressurizer Level Channel 2 Deviated Approx 5% from Other 2 Channels.Caused by Gas Pocket in Sensing Line
ML17317A887
Person / Time
Site: Cook 
Issue date: 01/16/1979
From: Beilman T
INDIANA MICHIGAN POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317A880 List:
References
LER-78-065-03L, LER-78-65-3L, NUDOCS 7901220132
Download: ML17317A887 (2)
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LER-1978-065, /03L-0 on 781229:indication for Pressurizer Level Channel 2 Deviated Approx 5% from Other 2 Channels.Caused by Gas Pocket in Sensing Line
Event date:
Report date:
3151978065R03 - NRC Website
v • d • e

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NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT

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8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 ON 12 29 78 THE INDICATION FOR PRESSURIZER LEVEL CHANNEL TWO WAS DISCOVERED TO HAVE A DEVIATION OF APPROXIMATELY FIVE PER CENT FROM THE OTHER TWO CHANNELS ~

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0 Q23 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS A27 THE CAUSE OF THE PROBLEM WAS ATTRTBUTED TO A GAS POCKET LOCATED IN THE SENSING LINE.

THE SENSING LINE WAS REFILLED TO REMOVE THE GASES AND UPON RESTORATION, CHANNEL INDICATION RETURNED TO NORMAL.

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